YR
Support Staff Member
Join Date: 3/6/2009
Posts: 6
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Posted: 4/1/2009 10:29:20 AM
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What are Extra channels? Extra channels, refers to color channels in addition to the basis channels. For example, if you have PSD in CMYK format – the basis channels are cyan, magenta, yellow, black, and alpha (optionally). If you need to draw some ornament using gold color which cannot be produced by CMYK inks, you will use special gold inks. The markup of pixels for this gold inks will be specified via additional channel. It means that this additional channel will indicate where to print using gold inks and where not. Currently the PFS web-to-print software does not support extra channels. If you need to utilize a PSD template containing extra channels, you need to delete them first.
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